<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>控制器</title>
    <script src="/css/jquery-3.5.1.min.js" defer></script>
    <script src="/css/control.js" defer></script>
    <script src="/css/control.js" deffer></script>
  </head>
  <body>
    <button id="b1">jQuery</button>
  </body>
</html>
